What question did this study set out to answer?

The aim is to develop a method for estimating quantum states using nonideal photon detection devices.

March 26, 2026

Tomography of Optical Quantum States with Imperfect Photon-Number-Resolving Detectors

Puntos clave

The aim is to develop a method for estimating quantum states using nonideal photon detection devices.
Examining squeezed coherent states to assess detector performance.
Analyzing the impact of detector efficiency on quantum-state fidelity.
Investigating the effects of dead time on photon measurement accuracy.
Higher detector efficiency improves the fidelity of quantum-state reconstruction.
Increased dead time leads to significant fidelity loss in state estimation.

Resumen

A method for quantum state estimation using nonideal photon detection devices has been developed. Using the example of squeezed coherent states, we study the influence of detector efficiency and “dead time” on the fidelity of quantum-state reconstruction for photon-number-resolving (PNR) detectors.

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Cite This Study

Dmitriev et al. (Mon,) studied this question.

synapsesocial.com/papers/69c4cc02fdc3bde4489175ab https://doi.org/https://doi.org/10.1134/s106373972560164x

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